Constraints in SQL || How to add validations in SQL #sql

Discover the Power of Constraints in SQL: Ensuring Data Integrity 🛡️

Ever wondered how databases maintain data accuracy? Join us in this insightful video as we unravel the world of SQL constraints – the superheroes with shields for your data! 🦸‍♂️🛡️

Learn how constraints act like guardians, preventing invalid data from sneaking into your database. We'll delve into real-life examples, like adding validations to columns such as age and making certain fields mandatory, ensuring your data stays reliable and error-free.

Watch as SQL checks these constraints during data entry and updates, rejecting any entries that don't meet the specified criteria. Whether you're creating a new table or altering an existing one, constraints play a vital role in maintaining the quality of your database.

Discover how unique keys and primary keys serve as constraints, allowing only unique values into columns. Want to explore more about keys in SQL? Check out our detailed video – link in the bio!

🔗 Link to 'Understanding Keys in SQL' video in bio.

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